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Effect of maximum grip strength on controlled force exertion measured by a computer-generated sinusoidal waveform in young adult males

机译：通过计算机生成的正弦波形，最大握力对成年男性控制力施加的影响

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Context It is important to develop a method to accurately measure controlled force exertion (CFE). Objectives This study aimed to examine the effect of maximum grip strength on CFE measured by a sinusoidal waveform in 81 right-handed young males aged 15-29 years.Methods On the basis of grip strength measurements, participants were divided into the following three groups: low (males 20; mean age 19.5 years; standard deviation (SD) = 5.0 years), medium (males 41; mean age 22.8 years; SD = 4.2 years), and high (males 20; mean age 23.7 years; SD = 3.4 years). Participants adjusted the submaximal grip strength of the dominant hand with changes in the demand values that were displayed as a sinusoidal waveform with a frequency of 0.1 Hz on a computer screen. The abovemen-tioned test was performed three times with a 1 -min interval after one practice trial. Each trial lasted 40 s. The sum of the differences between the demand value and grip exertion strength value for 25 s was considered as the evaluation parameter.Results Controlled force exertion values demonstrated insignificant correlations with age and maximum grip strength in all groups (r = 0.07; r = -0.12; p [ 0.05). No significant differences were found between CFE mean scores that was adjusted for age and varying maximum grip strength in the three groups (F = 1.95; p [ 0.05). Conclusions Based on the sinusoidal waveform display, we inferred that maximum grip strength has little effect on CFE evaluation in young males.
机译：背景技术开发一种精确测量受控力作用（CFE）的方法非常重要。目的本研究旨在探讨正弦波波形测量的最大握力强度对81位15-29岁右撇子青年男性的CFE的影响。方法根据握力强度的测量，参与者分为以下三组：低（男性20;平均年龄19.5岁;标准差（SD）= 5.0岁），中度（男性41;平均年龄22.8岁; SD = 4.2岁）和高（男性20;平均年龄23.7岁; SD = 3.4）年份）。参与者根据需求值的变化调整了优势手的次最大握力，需求值的变化在计算机屏幕上以0.1 Hz的正弦波形显示。一次实践试验后，上述测试以1分钟的间隔进行了3次。每个审判持续40 s。 25 s的需求值和抓地力强度值之差的总和被认为是评估参数。结果在所有组中，控制力施加值与年龄和最大抓地力之间均无显着相关性（r = 0.07; r = -0.12 ; p [0.05）。在三组中，根据年龄调整的CFE平均得分与最大抓地力的变化之间没有显着差异（F = 1.95; p [0.05）。结论基于正弦波形显示，我们推断最大握力对年轻男性的CFE评估影响很小。

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